地铁深基坑施工风险时空演化及控制

被引:16
作者
苏婉君
周迎
周诚
机构
[1] 华中科技大学土木工程与力学学院
关键词
地铁基坑; 风险预测; 支持向量机; 时空演化; BIM; 风险控制;
D O I
10.13579/j.cnki.2095-0985.2017.06.022
中图分类号
U231.3 [];
学科分类号
摘要
地铁基坑安全事故频发主要是基坑工程本身的特点和风险管理的缺陷,本文以武汉某地铁车站为例,从风险预测、风险规律研究、风险过程控制等过程提出了系统的风险管理方法,重点研究了基坑施工风险时空演化规律。首先,针对目前风险预测方法的缺陷,引入支持向量机实现基坑风险等级分类预测,有效地解决了基坑工程数据收集困难的问题;继而根据风险预测结果,得出了该地铁车站施工风险时空演化规律;最后以风险演化规律为依据,结合BIM技术进行基坑风险控制,风险状态可实时直观地展示,风险应对措施自动生成以防范安全事故的发生。研究结果证明本文提出的方法可有效保证地铁车站施工过程安全。
引用
收藏
页码:133 / 140
页数:8
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